What Websites Can See About Your Browser, and a User-Agent Parser
The table shows what every site can read the moment you open a page (this tool only reads it and shows it to you, and sends nothing). Combined, these values can tell you apart from other people, which is called a browser fingerprint. The parser box works on any User-Agent.
Part of the suite: Web and network tools
This browser
Parsed
| Browser | |
|---|---|
| Rendering engine | |
| Operating system | |
| Device type | |
| Bot / program |
Recent Chrome versions freeze the OS and device model in the User-Agent, so they are not the real values. Use Client Hints if you need them.
FAQ
What is a browser fingerprint?
A combination of many small browser details (screen size, fonts, graphics card, language and so on) that is almost unique to one person and can be used to follow you across sites even after you clear cookies.
How can I reduce tracking?
Use a browser with fingerprint protection (such as Firefox with strict tracking protection, or Brave) and fewer extensions. Turning on Global Privacy Control tells sites you do not consent to the sale of your data, but it is not a technical defence.
Why does the User-Agent not match reality?
Browsers trim details for privacy and also list other browsers' names for compatibility, so Edge says Chrome and Safari too. The parser therefore tests the most specific rules first.
Help us improve
Found a bug, want a feature, or have an idea? Tell us here. Every message is read.